Braarudosphaera sp.


Classification: Coccolithophores -> Braarudosphaerales -> Braarudosphaeraceae -> Braarudosphaera -> Braarudosphaera sp.
Sister taxa: B. bigelowii, B. insecta, B. magnei, B. pentagonica, B. perampla, B. perversus, B. sequela, B. stylifera, B. sp.,

Taxonomy:

Citation: Braarudosphaera sp.
Rank: Species
Synonyms: Quinquerhabdus colossicus Bukry & Bramlette (1969) - side view of an elevated pentalih but not identifiable o species level

Distinguishing features: Specimens which cannot be assigned to established species

Farinacci & Howe catalog pages: Quinquerhabdus colossicus *


Morphology remarks: vex upper surfaces. The convexity is due to the decreasing width of the constituent laminae. The laminae also change shape from stellate at the shortest width and most distal, to straight-edged at the maximum width.

Search data:
Tags
MetricsLith size: 0->0µm;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant Data source: same as genus
First occurrence (base): within NC7a subzone (122.25-123.88Ma, base in Aptian stage). Data source: same as genus

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Braarudosphaera sp., synonyms included - Braarudosphaera (unspecified taxon or taxa); Braarudosphaera sp.; Braarudosphaera sp. 1; Braarudosphaera spp.; Quinquerhabdus colossicus; Braarudosphaera sp. cf. africana;
  • space-time plot :: Samples map :: Parent: Braarudosphaera

    References:

    Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs :: view :: open

    Bown, P. R. (2010). Calcareous nannofossils from the Paleocene/Eocene Thermal Maximum interval of southern Tanzania (TDP Site 14). Journal of Nannoplankton Research. 31(1): 11-38. gs :: view :: open

    Bown, P. R. (2016). Paleocene calcareous nannofossils from Tanzania (TDP sites 19, 27 and 38). Journal of Nannoplankton Research. 36(1): 1-32. gs :: view :: open

    Bown, P. R., Gibbs, S. J., Sheward, R., O’Dea, S. & Higgins, D. (2014). Searching for cells: the potential of fossil coccospheres in coccolithophore research. Journal of Nannoplankton Research. 34(special): 5-21. gs :: view :: open

    Romein, A. J. T., Willems, H. & Mai, H. (1996). Calcareous nannoplankton of the Geulhemmerberg K/T boundary section, Maastrichtian type area, the Netherlands. Geologie en Mijnbouw. 75: 231-238. gs :: ::


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    Braarudosphaera sp. compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 27-5-2020

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=153 Go to Archive.is to create a permanent copy of this page - citation notes



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